DNA study links indigenous Brazilians to Polynesians : Nature News & Comment.

Quantum dot commands light: A solid state ultrafast logic gate on a photon.

A theorem in limbo shows that QED is not the last word in a mathematical proof | Science News.

New Vaccine-Design Approach Targets HIV and Other Fast-Mutating Viruses.

Neuroscientists Discover New Molecular Mechanism for Long-Term Memory Formation | Biology, Neuroscience | Sci-News.com.

Watch Festo’s robotic dragonfly take flight – Ideas@Innovations – The Washington Post.